Self-interference cancellation with nonlinear distortion suppression for full-duplex systems

Elsayed Ahmed, Ahmed M. Eltawil, Ashutosh Sabharwal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

93 Scopus citations

Abstract

In full-duplex systems, due to the strong self-interference signal, system nonlinearities become a significant limiting factor that bounds the possible cancellable self-interference power. In this paper, a self-interference cancellation scheme for full-duplex orthogonal frequency division multiplexing systems is proposed. The proposed scheme increases the amount of cancellable self-interference power by suppressing the distortion caused by the transmitter and receiver nonlinearities. An iterative technique is used to jointly estimate the self-interference channel and the nonlinearity coefficients required to suppress the distortion signal. The performance is numerically investigated showing that the proposed scheme achieves a performance that is less than 0.5dB off the performance of a linear full-duplex system. © 2013 IEEE.
Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
PublisherIEEE Computer Societyhelp@computer.org
ISBN (Print)9781479923908
DOIs
StatePublished - Jan 1 2013
Externally publishedYes

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